Free Louisiana CDL Practice Tests — Your Complete Study Guide
Pass your Louisiana CDL permit exam with 80%+ on the first try
Updated: June 2026
What You Need to Study
General Knowledge
The foundation of your CDL exam. Covers traffic laws, safe driving techniques, vehicle inspection procedures, cargo handling, and federal regulations every commercial driver must understand.
Combination Vehicles
Essential for driving tractor-trailers. Covers coupling and uncoupling procedures, rollover prevention, inspecting combination vehicles, and safely maneuvering with attached trailers.
Air Brakes
Required for any vehicle equipped with air brakes. Covers how air brake systems work, dual air brake systems, inspecting air brakes, and using them safely in all conditions.
Endorsement Tests
HazMat
Required for transporting hazardous materials. Covers placarding, labeling, loading procedures, emergency response, and compliance with federal hazmat regulations.
Tanker
Required for driving tank vehicles used to transport liquids or gases in bulk. Covers safe loading, unloading, and driving techniques specific to tanker operations.
Doubles & Triples
Required for pulling double or triple trailers. Covers coupling and uncoupling multiple trailers, safe driving practices, and inspection procedures for multi-trailer rigs.
Passenger
Required for operating vehicles designed to transport 16 or more passengers. Covers passenger safety, loading, emergency exits, and pre-trip inspection requirements.
Free Louisiana CDL Practice Tests — Your Complete Study Guide
What should you do when merging?
- Merge at a much lower speed than the flow of traffic.
- Use your mirrors to make sure the gap in traffic is large enough for you to enter safely.
- Merge without signaling.
Documents related to hazardous materials transportation must be stored ___.
- In the pouch of the driver door.
- Attached to the sun visor.
- In a box on the trailer.
Which of these statements about driving through a tunnel is correct?
- Keep windows open for fresh air.
- Turn off all lights inside the truck.
- There may be strong winds when exiting.
Among these vehicles, which is more likely to experience off-tracking during turns?
- Tractor with 45-feet trailer.
- 28-feet box truck
- 45-feet straight truck
Under what circumstances should you sound your horn?
- If it helps to avoid a crash.
- To let others know you are running late.
- To say hello to a friend on the sidewalk.
Identify the incorrect statement regarding alcohol consumption.
- A drinker can control how fast his or her body absorbs alcohol.
- Alcohol goes directly from the stomach to the blood stream.
- BAC is determined by how fast you drink; how much you drink and how much you eat.
If your vehicle is missing ____ or more leaves from any leaf spring, it won't be allowed to be used.
- 1/3
- 1/4
- 1/2
Select the correct statement regarding the transportation of hazardous materials.
- Any truck carrying any amount of hazardous materials must have placards.
- Hazardous materials can be disposed of in regular trash bins if the containers are sealed.
- All hazardous materials present health and safety danger.
To figure out how much alcohol is in someone's blood (BAC), you need to know:
- Their height.
- The time of day they drink alcohol
- Their weight.
What is the right way to hold a steering wheel?
- With one hand on the top of the wheel and the other on your lap.
- With your knees, while using your hands to adjust the radio.
- With both hands, on opposite sides of the wheel.
What Are You Preparing For?
Select one or more options so we can show you exactly which tests you need to take.
What You Need to Study
General Knowledge
16 sections · 800 questions
The foundation of your CDL exam. Covers traffic laws, safe driving techniques, vehicle inspection procedures, cargo handling, and federal regulations every commercial driver must understand.
Combination Vehicles
9 sections · 180 questions
Essential for driving tractor-trailers. Covers coupling and uncoupling procedures, rollover prevention, inspecting combination vehicles, and safely maneuvering with attached trailers.
Air Brakes
6 sections · 150 questions
Required for any vehicle equipped with air brakes. Covers how air brake systems work, dual air brake systems, inspecting air brakes, and using them safely in all conditions.
Endorsement Tests
Additional endorsements you may need depending on the type of vehicle or cargo you plan to operate.
HazMat
9 sections · 202 questions
Required for transporting hazardous materials. Covers placarding, labeling, loading procedures, emergency response, and compliance with federal hazmat regulations.
Tanker
6 sections · 133 questions
Required for driving tank vehicles used to transport liquids or gases in bulk. Covers safe loading, unloading, and driving techniques specific to tanker operations.
Doubles & Triples
7 sections · 144 questions
Required for pulling double or triple trailers. Covers coupling and uncoupling multiple trailers, safe driving practices, and inspection procedures for multi-trailer rigs.
Passenger
6 sections · 123 questions
Required for operating vehicles designed to transport 16 or more passengers. Covers passenger safety, loading, emergency exits, and pre-trip inspection requirements.
Your Path to a Commercial Driver's License
To get a CDL, you must first study for and pass the permit exam at the DMV. After you receive your permit, you can take commercial vehicle driving classes and complete the required training. The final step is passing the official driving exam to earn your CDL. Our practice tests help you prepare for the DMV permit exam with real-style questions, and we also provide extra study materials and helpful resources to guide you through the process.
To obtain a CDL in Louisiana, you must pass three written permit tests — General Knowledge, Combination Vehicles, and Air Brakes — at the Louisiana Department of Motor Vehicles. Similar to a regular driver's license permit exam, these are timed, multiple-choice tests based on the official Louisiana CDL handbook.
All of our practice material is built from the official Louisiana CDL handbook and federal resources, and curated by professionals with over 10 years of experience in the commercial transportation industry. Studying with practice tests that mirror the real exam format is one of the most effective ways to pass on your first try.
On this page you'll find free practice tests for all three sections. For the full question bank and additional study features, download the CDL Help app.
Louisiana CDL Knowledge Test: Format & Requirements
The CDL knowledge (written) test follows the same federal standards in Louisiana as nationwide. Here's what to expect.
Questions by test
Passing score, question counts, and test format are federal standards (FMCSA, 49 CFR Part 383). Always confirm current details with your state's official CDL handbook.
Louisiana CDL Fees & Licensing
non-Orleans parishes
State-charged fees as of June 2026. Amounts change — confirm current fees with the official agency.
CDL Requirements in Louisiana
publicexpresslane49 CFR §391.11
- To obtain a Commercial Driver License (CDL) in Louisiana, you must meet the following eligibility requirements:
- Must be at least 18 years old for intrastate (within Louisiana) commercial driving.
- Must be at least 21 years old for interstate commercial driving or to transport hazardous materials.
- Must hold a valid Louisiana driver's license.
- Must be domiciled in Louisiana. Two original documents showing name and Louisiana street address from separate sources are required.
- Must be a U.S. citizen or lawful permanent resident. Acceptable citizenship documentation includes a certified birth certificate, valid U.S. passport, or Certificate of Citizenship (Form N-560 or N-561).
- Must complete a medical examination and provide a valid Medical Examiner's Certificate to the Office of Motor Vehicles (OMV). All Louisiana CDL holders — regardless of self-certification category — must submit a current Medical Examiner's Certificate. Medical exams must be renewed every two years.
- Must pass the General Knowledge written test (80% passing score) and any applicable endorsement knowledge tests.
- Must obtain a Commercial Learner's Permit (CLP) before taking the CDL skills test; the CLP must be held for at least 14 days.
- Must pass a three-part skills test: vehicle inspection, basic vehicle controls, and road test. Must be completed in the type of vehicle the driver will operate.
- Entry Level Driver Training (ELDT) is required for all original Class A and Class B CDL applicants, as well as those adding Passenger (P), School Bus (S), or Hazmat (H) endorsements.
- Must not have a "prohibited" status in the federal Drug & Alcohol Clearinghouse (DACH).
- Must pass a TSA security threat assessment for Hazmat endorsement.
- CDL classes: Class A (combination vehicles over 26,001 lbs GCWR), Class B (single vehicles over 26,001 lbs GVWR), Class C (vehicles designed to transport 16+ passengers or hazmat).
- Endorsements available: H (Hazmat), N (Tank), P (Passenger), S (School Bus), T (Double/Triple Trailers), X (Hazmat + Tank), M (Motorcycle). Endorsement fee: $7.50 each; Motorcycle: $12.
- CDL fees: Application fee $15, CDL license fee $61.50, handling fee $0–$6. Estimated total: $76.50–$82.50 (Orleans Parish: $91.50–$97.50).
- Louisiana CDLs are valid for 6 years.
Official Louisiana CDL Handbook
The official Louisiana Commercial Driver's License Manual covers every topic tested on the state's CDL knowledge exam — but it reads like a dense reference manual, not a structured study guide. A more effective way to prepare is with our General Knowledge practice tests. Our free Louisiana CDL permit practice test mirrors the format and content of the official exam and is fully up to date as of February 2026. Each practice test features 20 questions covering essential topics such as vehicle inspection, safe driving techniques, air brakes, cargo securement, driving emergencies, hazardous conditions, and Louisiana-specific commercial driving regulations. Unlike the official test, every practice question comes with a helpful hint and a detailed explanation of the correct answer — so you actually learn from every question you answer.
- Complete CDL regulations and Louisiana-specific requirements
- Safe driving techniques, vehicle inspection, and cargo handling
- All endorsement categories and testing requirements
CDL Practice Tests in Nearby States
Testing near Louisiana? Practice for a neighboring state's CDL exam too.
Non-Domiciled CDL Information
Important information about non-domiciled commercial driver's licenses in Louisiana.
Federal regulations on non-domiciled CDLs are changing rapidly. The information below reflects the latest known state actions.
Louisiana stopped issuing all non-domiciled CLPs and CDLs on October 2, 2025, in response to the FMCSA Interim Final Rule titled "Restoring Integrity to the Issuance of Non-Domiciled Commercial Drivers Licenses." Louisiana has confirmed that it will not resume issuing non-domiciled CLPs or CDLs — even following the U.S. Court of Appeals administrative stay issued on November 13, 2025. Holders of current non-domiciled Louisiana CLPs/CDLs seeking renewal or duplicates are required to downgrade rather than renew. Previously, Louisiana required non-domiciled applicants to provide an unexpired foreign passport with approved I-94/I-94A, proof of Louisiana residency, identification, and a valid Medical Examiner's Certificate; the credential expired at the shorter of the I-94 expiration date or one year. Under the FMCSA final rule published on February 13, 2026, eligibility for non-domiciled CLPs and CDLs is now limited to H-2A, H-2B, and E-2 visa holders. Affected drivers should contact the Louisiana OMV for more information.[FMCSA Final Rule]
English Language Proficiency (ELP)
Federal ELP enforcement applies to all CDL holders nationwide.
Federal ELP enforcement applies to all CDL holders nationwide. Here is how it is enforced in Louisiana.
Louisiana does not currently administer a separate state-level English Language Proficiency (ELP) test for CDL applicants. However, all Louisiana CDL holders are subject to federal ELP enforcement, which took effect on June 25, 2025. Under this enforcement, roadside inspectors conduct a two-step assessment: first, a conversational interview in English — no interpreters or translation tools are permitted — to evaluate whether the driver can communicate sufficiently in English; second, the driver must demonstrate the ability to read and interpret standard U.S. traffic signs. Drivers who fail either step of the assessment are placed out of service under CVSA guidelines. Louisiana CDL applicants should be prepared to demonstrate English proficiency during any roadside inspection or compliance review.